The Effect of Lactic Culture Homogenization on Cottage Cheese Yield

Hamzah, Basuni (2009) The Effect of Lactic Culture Homogenization on Cottage Cheese Yield. In: Lactic Acid Bacteria and Culture Collection, January 16-17, 2009, Yogyakarta. (In Press)

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      Cottage cheese industry has a problem especially on the culture agglutination during manufacture of the cheese. Long chains of lactic culture falling down to the bottom of the vat could decrease the yield of cottage cheese. In this study, skim milk homogenized at 7 (single stage), 71 and 176 kg/cm2 (dual stage, 35 kg/cm2 second stage) was used in the manufacture of cottage cheese. Eahc lot of skim milk manufactured into cottage cheese was inoculated with lactic culture M30. Bulk starter of lactic culture M30 was homogenized 0.35 (single stage), 106 and 246 kg/cm2 (dual stage, 35 kg/cm2 second stage). The used of 4 different bulk starters with 3 different skim milk treatments produced a total of 12 bulk starter skim milk combinations. All 12 bulk starter skim milk treatment combinations were randomized prior to their manufacture. The experiment was replicated 4 times in the manufacture of 48 vats of cottage cheese. Either homogenization of skim milk at 71 kg/cm2 (dual stage, 35 kg/cm2 second stage) or greater of homogenization of bulk culture at 246 kg/cm2 (dual stage, 35 kg/cm2 second stage) reduced yield loss. Correlations were made between severity of agglutination determinants and yield loss. This research outlines the procedures that a cottage cheese manufacture can use to determine the severity of agglutination occurring in the vats. Once the severity of agglutination has been determined, the manufacturer can estimate the yield loss in the plant by using correlation figures provided by this research. Calculation of yield loss and economic loss can be then calculated

      Item Type: Conference or Workshop Item (Paper)
      Subjects: Q Science > QD Chemistry
      Q Science > QR Microbiology
      S Agriculture > S Agriculture (General)
      Divisions: Faculty of Agriculture > Department of Agriculture Product Technology
      Depositing User: Basuni Hamzah
      Date Deposited: 22 Oct 2014 11:14
      Last Modified: 03 Mar 2015 09:11

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